It all sounds very familiar. There are parts of the barrel that looks even worse than in the pictures I posted.
the 400gr the 375 rap slings is an expanding subsonic, works similar to the lehigh controlled chaos and creates three 'petals' that cut like a corkscrew. While the muzzle energy is less than a 675gr .458 SOCOM, it preserves the energy better over distance because of the projectile shape, leading to better terminal performance. Just something to consider.
How many guns and ammo variants are available for that? Could have just done a 375 Whisper
anything that will take standard .308 can run it without much issue, mags are standard metal .308, pmags can be used by filing a couple thousandths off the front reinforcing rib.
I'm not saying I disagree but it looks like with 375 Raptor you still run into issues with projectiles like you do with 8.6BLK.anything that will take standard .308 can run it without much issue, mags are standard metal .308, pmags can be used by filing a couple thousandths off the front reinforcing rib.
bolt face is standard .308, so is the case head.
gas systems generally play nicely as the cartridge was designed from the ground up to be used in those platforms
bullets there are some specific ones designed by maker bullets, but most of the ones designed for .375 H&H/weatherby/etc will work
I’ve been enjoying mine for some time now.
edit: Bonus: you can legitimately call it your elephant gun because it meets african game legal minimums of .375 or larger
It doesn't work like that, the bullet doesn't stay in one place and spin around. So a total of 4 revolutions through 12" or 2 revolutions it doesn't matter, neither will not whip your egg whites...then it could tumble, causing more damage than the spinning effect.
no? my supersonic load uses the 260gr nosler accubond, while the subs are using 300gr speer SPBTs that don’t run the risk of spinning apart. if you want maximum subsonic performance the maker 400gr monolithic expanders are available, but the speers have done just fine on the deer and hogs I’ve shot with them
No issues with expantion at subsonic velocities?
I have a 300blk 9" MCX I enjoy, and instead of cast lead the hornady sub-x has been quite excellent in my gel tests. readily available factory and for reloading.
I never got around to testing the Sub-X on game, but they shot well on targets.
Speer doesn't make a 300 gr SP only a 270 gr, & 235gr at this time. I think Sierra might but they are expensive, some of the rest are round nose, and many really expensive. I looked at the 375 Raptor awhile back, and tbe 45 Rapter. Ended up ordering a 6 5 twist 8.6 barrel & bought a reamer to replace the limited 3 twist. As I have a bunch of 300 gr 338 match that will go both super and sub in the new barrel...to make it more user friendly.
I've shot the Speer 200 gr and 225 gr ...the 200 gr Speer SP held together up until 1600 fps, tested without muzzle devices, in the 3 twist accuracy was okay 3 twist 50 yd type... but the jacket is probably too thick to expand at subsonic speeds, but these bullets can be altered.
I shoot 357 mag and 9 mm pistol bullets in a 16" 358 Win AR 10, they are fairly accurate at super sonic speeds and can claim some very high velocities like 3760 fps with 50 gr copper 9 mm bullets from a 16" barrel ...never tried them at subsonic in the AR 10. But they would expand but you'd probably have to work the action for every shot, unless you change a bunch of stuff, then might as well shoot a 9mm pistol in an a AR 15.
sorry, sierra .375 300gr gameking.
Agreed. 338 whisper / 338BR is the best of 338 based subsonics and using VV tin star will give you sub moa long range subs.
You can get a 250 45cal which is in a 33cal. I'm only talking weight wise and are already subbed for 45. How the bullet behaves will be different for sure, but @ 100 yards it isn't making enough difference. Get a 500automax and shoot 600's+ as a true sub without the 8.6 issues. A 3 twist seems ridiculous like others mention.
Okay, you can get a 250gr 45. And you can get a 340gr 338. The extra 20gr on the 45 doesn’t get it in competition, weight-wise.
I shoot tmj/fmj's 99% of the time, so expansion is meaningless to me. Whether it be subs in 22's or 50's there will be a right size for someone and bc to go along with it? Don't know why 8.6 is so special unless someone is a metric enthusiast. It's not much different than 338fed or those who went 22creed as a 22-250AI is as close as they'll get. Both will be barrel burners if ant are concerned? 8.6bo is a niche cartridge and there are those who love it. I'm not a sub guy, but do own a 300bo and not for subs. I have a few 185 and 170's that dip into the sub realm because of barrel length. The upper on the automax isn't specialized by any means any more than a 450bm. Just a larger ejection port is all.
Then, there’s not much else to say.
The automax uses an AR-10 upper. The 450 BM uses an AR-15. Now, perhaps people use the AR-15 upper with a bigger bolt face for the 500 automax, but the company behind the cartridge chooses to use the AR-10 because of the forces involved.
I was just comparing "specialized" uppers is all regardless of platform. I have short mags for AR10's with enlarged ejection port, but not really specialized. All it takes is a Dremel.
My 300BLK with cast projectiles and an ES of like 100fps shot similar to that (about 4" at 100m).
The older I get, the more I think about the actual task at hand, and less on hypotheticals. In the case of the 8.6, the task is lobbing large projectiles into huge targets (med-large game vitals) at short range. Is 4 moa good? Hell no. Given the task, is it good enough? Yes.
This group is identical to my experience. I have spent two days at the range trying to zero my 12” Faxon bolt rifle. My groups were so bad, I changed my scope and made sure everything was aligned. I shot 6, 3rd groups. I had a spread between 4-10”. I thought the gun was Crocked I have calls going out to Faxon and gorilla to try and figure what is going on.
IMO the 3 twist is trouble... part of it appears in the manufacturing, of that tight twist with a button...at least it aint mastered by Faxon, as most complain of. Nothing positive about a 3 twist and an 8 twist will stablize most 338 bullets at sub velocity, as I played with the twist calculator, but went for the 6 5 twist. I have a 6 twist in 223 that preforms well with the heavy bullets, no blow ups or accuracy issues.
Well “slower” twist barrels stabilize those bullets at supersonic velocities from 338 federal, 338-06, 338 win mag, 340 Weatherby, 338 lapua, among others.
The 3 twist ...You like it, you run it... enjoy your 3 twist.
Theoretically you can add the tiniest bit of extra powder to compensate for the additional “rotational energy” for subs. You don’t need to worry about excessive pressure with subs. But really, the “extra rotational energy” is marketing hype by Brittingham. It’s not actually extra energy on target and he knows it, and has admitted as much. It was just another one of Brittingham’s sleight of hand.
